https://youtu.be/RRkhi9RoRe8
Here you can find how to fix the steps by removing the fuse. In the comments there’s one posted by Sam C. :
“Everyone driving a GMC with this problem. I did the fuse thing, didn't work. Look through the internet. No
solution. What worked for me was to unplug the module beneath the steering wheel. I then opened all the doors on the truck. Then I turned it power on.
Didn't have to turn the engine over. Then plugged the module back in. Then closed all of the doors. And it worked.” Hope either solutions solves it for y’all.